<%@ page language="java" contentType="text/html; charset=utf-8"
    pageEncoding="utf-8"
     %>
<%
String path = request.getContextPath();
String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
  <head>
    <base href="<%=basePath%>">    
    <title>??</title>        
  <meta http-equiv="pragma" content="no-cache">
  <meta http-equiv="cache-control" content="no-cache">
  <meta http-equiv="expires" content="0">    
  <meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
  <meta http-equiv="description" content="This is my page">
 </head>
 <body>
		
 		<div>
 			<form action="<%= pageContext.getServletContext().getContextPath()%>/testModelAttribute" method="post">
 			<!-- 给个隐藏域 id属性 -->
 			<input type="hidden" name="id" value="1">
 			用户名 <input type="text" name="username" value="admin"></input><br>
 			  邮件 <input type="text" name="email" value="123@qq.com"></input><br>
 				<button type="submit">提交</button>
 			</form>
 		</div>
 </body>
</html>